Ingredients
Equipment
Method
Main Instructions
- Warm the olive oil in a large skillet over medium heat until it begins to shimmer.
- Toss in the sliced onions and sauté for 10-12 minutes until they reach a deep golden brown.
- Add the minced garlic to the pan and cook for 1-2 minutes until the aroma is released.
- Incorporate the ground beef into the skillet and cook until browned, breaking up clumps with a spatula.
- Carefully drain any excess fat from the pan before stirring in the Worcestershire and soy sauces.
- Allow the beef mixture to simmer for 5 minutes so the savory flavors can fully develop.
- Lightly toast your hamburger buns in a separate pan or oven until the edges are golden.
- Pile the beef mixture onto the bottom buns, top generously with Swiss cheese, and close the sandwich.
- Sprinkle with a bit of fresh parsley for a pop of color before serving immediately.
Notes
For the best results, ensure the onions are truly caramelized as this provides the signature sweetness that defines the dish. If you prefer a meltier finish, place the open-faced sandwiches under a broiler for sixty seconds to bubble the Swiss cheese. Leftover meat can be stored in an airtight container for up to three days and reheats beautifully on the stovetop with a splash of beef broth.
